1.Recent progress on study of the selection of intraocular lens in the bilateral sequential cataract surgery
Chinese Journal of Experimental Ophthalmology 2014;32(6):560-562
Bilateral sequential cataract surgery is very common in clinical,but the ophthalmologists often ignore how to choose the timing of operation and whether the first eye can be used to improve the intraocular lens (IOL) power calculation for the second one.Despite the refinements in IOL selection with the use of third-generation IOL formulas,5% of eyes still result in a postoperative refractive surprise of ± 1.00 D or more.This paper introduced the methods of using refraction error of the first eye to improve the IOL power calculation for the second eye,and the refractive error of the second eye can be improved by modifying the IOL power to correct up to 50% of the error from the first eye in details.Because of the variation of the postoperative refractive surprise within a month,the interval of three to four weeks between two eyes cataract surgery is highly recommended.These conclusions may provide the advantageous guidance for us in the selection of IOL in bilateral cataract surgery.
2. Pharmacokinetics of fondaparinux sodium in Chinese patients after major thoracic surgery
Chinese Pharmaceutical Journal 2012;47(24):2022-2025
OBJECTIVE: To characterize the pharmacokinetics of a single dose of 2.5 mg fondaparinux sodium in Chinese patients after thoracic surgery. METHODS: Thirteen patients were enrolled in the study and were given a single dose of 2.5 mg fondaparinux sodium via a subcutaneous injection. Plasma concentrations of fondaparinux sodium were measured throughout a 24 h period. The pharmacokinetic analysis was performed using WinNonlin software. RESULTS: The following pharmacokinetic parameters were derived; t1/2(7.92 ± 3.13) (4.21-15.89) h, tmax(2.52 ± 0.93) (1.38-4) h, p-1 (0.73 ± 0.18) (0.45-1.02) mg · L-1, AUClast(6. 56 ± 2.19) (3.07-9. 75)mg · h · L-1, Vz/F(3.54 ± 1.00) (2.24-5.73) L, CL/F(0.34 ± 0.14) (0.16-0.63) L · h-1, and MRTlast (6.98 ± 2.1) h. The pearson correlation coefficient, r was 0.7283(P = 0.005) between the serum creatinine(Scr) and mean residence time(MRTlast) of fondaparinux. CONCLUSION: The disposition of fondaparinux is highly variable in patients. A statistical significant correlation between Scr and MRTlast of fondaparinux was observed. Fondaparinux sodium administered by intravenous injection is well tolerated in patients.
3.Study on the Detection Rate of Cell and Linearity Performance Detection Method in the CellSearch System.
Chinese Journal of Medical Instrumentation 2016;40(1):58-66
Research on CellSearch system's detection rate of cells and linearity performance detection method, so as to analyze the accurate and reasonable detection method to meet the CellSearch characteristics of the system.
Biomarkers, Tumor
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Cell Line, Tumor
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Cell Separation
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methods
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Humans
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Neoplastic Cells, Circulating
4.Cluster ensemble algorithm based on dual neural gas applied to cancer gene expression profiles.
Journal of Biomedical Engineering 2015;32(1):93-98
The microarray technology used in biological and medical research provides a new idea for the diagnosis and treatment of cancer. To find different types of cancer and to classify the cancer samples accurately, we propose a new cluster ensemble framework Dual Neural Gas Cluster Ensemble (DNGCE), which is based on neural gas algorithm, to discover the underlying structure of noisy cancer gene expression profiles. This framework DNGCE applies the neural gas algorithm to perform clustering not only on the sample dimension, but also on the attribute dimension. It also adopts the normalized cut algorithm to partition off the consensus matrix constructed from multiple clustering solutions. We obtained the final accurate results. Experiments on cancer gene expression profiles illustrated that the proposed approach could achieve good performance, as it outperforms the single clustering algorithms and most of the existing approaches in the process of clustering gene expression profiles.
Algorithms
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Cluster Analysis
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Gene Expression Profiling
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methods
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Humans
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Neoplasms
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genetics
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Transcriptome
5.Advance of treatment for newly diagnosed multiple myeloma
Journal of Leukemia & Lymphoma 2008;17(5):391-394
Multiple myeloma is a plasma cell malignancy.At diagnosis,most patients are older than 65 years,In newly diagnosed myeloma patients younger than 65 years,high-dose of melphalan followed by autologous stem cell transplantation(ASCT)is regarded as the standard treatment.In elderly patients,usually older than 65 years,oral melphalan and prednisone(MP)has been considered as the standard regimen recently.However,the discovery of thalidomide,lenalidomide,and the proteasome inhibitor bortezomib will increase the effect of clinical treatment.This review will summarize literatures and focus on the treatment of newly diagnosed myeloma.
6.Application of neutrophil CD64 on the diagnosis and treatment of infectious diseases
Chinese Journal of Laboratory Medicine 2016;39(5):340-343
The early diagnosis of serious infection is very important since the fatality rate is quite high.Traditional diagnostic methods of infection includes procalcitonin,leukocyte count,CRP and so on,of which the sensitivity and specificity is not able to achieve the early diagnosis.Recently,neutrophil CD64 has been widely concerned for the high sensitivity and specificity in early diagnosis of bacterial infection.Flow cytometry is applied to detect neutrophil CD64 in early diagnosis of infectious diseases including respiratory infection,septicemia,neonatal intensive infection,burn and postoperative infection.What's more,the sensitivity and specificity can be further improved if neutrophil CD64 was combined with other inflammatory markers.Thus,neutrophil CD64 detected by flowy cytometry plays an important role in the diagnosis,monitoring,prognosis,therapeutic effect evaluation of infectious diseases.
7.Effect of audio training on executive dysfunction in patients with stroke
Jingjing ZHANG ; Changxiang CHEN
Chinese Journal of Cerebrovascular Diseases 2016;13(7):356-359
Objective To investigate the effect of Tomatis audio training on executive dysfunction in patients with stroke. Methods A total of 80 stroke patients from the Rehabilitation Branch,Tangshan Worker′s Hospital were enrolled prospectively. They were divided into either a music group or a control group (n = 40 in each group)according to random number table. On the basis of conventional rehabilitation training,both groups received music training. The patients of the control group received conventional music training (conventional frequency music without audio processing);the patients of the music group received Tomatis audio training. Both groups were trained at the same time,once a day for 60 -90 min,and they were trained for 2 cycles. The first cycle was 14 days and the second one was 10 days,the interval of the 2 cycles was 30 days (a total of 54 days). The Behavioral Assessment of Dys-executive Syndrome (BADS)was used to assess their executive dysfunction before and after music training. Results The 6 sub-projects of BADS in the music group after music training:the rule shift cards test,action program test,key seek test, temporal judgment test,zoo map test,modified six elements test,and total standard score (median 75 ])2. 0 (1. 2,2. 7),2. 0 (1. 0,2. 0),2. 0 (1. 0,2. 0),2. 0 (1. 0,2. 0),2. 0 (2. 0,2. 0),2. 0 (2. 0,3. 0),and 11. 0 (11. 0,12. 0),respectively). They were compared with those of the control group (1. 0[1. 0,2. 0],1. 0[1. 0,2. 0],1. 0[1. 0,2. 0],1. 0[1. 0,2. 0],1. 0[1. 0,2. 0],1. 0[1. 0,1. 0],and 8. 0[8. 0,10. 0],respectively]. There were significant differences between the 2 groups (all P < 0. 05). Conclusion Tomatis audio training may effectively improve the executive function in patients with stroke.
8.Quality of marriage and sexual function of cervical cancer patients following radical hysterectomy and vaginal extension
Journal of Chinese Physician 2015;17(6):834-837
Objective To investigate the quality of marriage and sexual function of cervical cancer patients following radical hysterectomy and vaginal extension.Methods Case-control and questionnairebased methods were used in this study.Forty patients of early-stage (Ⅰ b 1 ~ Ⅰ b2) cervical cancer who had undergone vaginal extension following classic radical hysterectomy were included in the observation group,while 40 patients with matching factors and radical hysterectomy only during the same period were included in the control group.The quality of marriage and sexual function were compared with OLSON marriage prolapse and incontinence sexual function questionnaire Shon Fonn (PISQ-12).Results The operation time and postoperative vaginal length in the observation group were higher than those in the control group (P < 0.05 or P < 0.01).The emotional,physical,and total scores during postoperation were lower than those during preoperation (P < 0.01).The emotional,physical,and total scores in the control group were lower than those in the observation group (P < 0.01).The marital satisfaction,husband and wife communication,conflict resolution methods,extracurricular activities and sex scores in the observation group were higher than those in the control group (P < 0.05 or P < 0.01).Conclusions Patients with peritoneovaginoplasty following radical hysterectomy had much longer vagina and less self-perceived short vagina.Vaginal extension following radical hysterectomy does not worsen the pelvic floor symptoms.
9.Influential factors on treatment effect of primary hepatic cancer and the countermeasure
Chinese Journal of General Surgery 2001;10(2):97-98
Objective To improve the treatment effect of primary hepatic cancer (PHC). Methods Analysis of the influential factors on treatment effect of PHC in China, and propose the countermeasure. Results and Conclusions The main factors influencing the treatment effect of PHC in China are the followings: (1) Most patients with PHC of subclinical type failed to be diagnosed and treatment in time. (2) As a wrong idea PHC has been considered an “uncurable disease", so the treatment strategy is nagative. (3) Unsuitable choice of treatment resulted in some PHC unable to be resected. (4) Intraoperative massive bleeding due to unskill-operative techniques, increase the postoperative morbidity and mortality. (5) The manner of treatment is not positive for PHC patients with portal cancer thrombosis, bile duct cancer hteombosis and portal hyperlension. (6) Combined therapy can not be used or unsuitably used. The following things should be done in order to improve the treatment effect of PHC: (1) Strengthening improving the health-protective consciousness of people and regular examinaton of “high risk" population. (2) Renewing the professional knowledge in time to improve the level of diagnosis, treatment and operative techniques of medical personnel. (3) strengthening the basic medical research to make a break through in PHC treatment.
10.INVESTIGATION ON ASSOCIATION OF SERUM BILIRUBIN CONCENTRATION WITH RISK OF CORONARY HEART DISEASE
Chinese Journal of Postgraduates of Medicine 2001;24(5):18-19
Objective To investigate the relationship between of serum bilirubin concentrations and risk of coronary heart drsease (CHD). Methods Serum bilirubin concentrations were determined in 12 cases with acute myocardial infarction(AMI)、37 cases with unstable angina pectoris (UAP) and 30 cases with UAP with arrhythmia. Results The serum total bilirubin(TB)、direct bilirubin(DB)、indirect bilirubin(IB) concentrations were lower in the three study groups of CHD than in the controls. There was significant difference between the patients with CHD and the controls. However, there was no significant difference among the three study groups of CHD. Conclusion Serum bilirubin concentrations was inversely and statistically significantly related to risk of CHD.